Adherents.com is a growing collection of over 43,870 adherent statistics and religious geography citations: references to published membership/adherent statistics and congregation statistics for over 4,200 religions, churches, denominations, religious bodies, faith groups, tribes, cultures, movements, ultimate concerns, etc. The religions of the world are enumerated here.
This list has been compiled by the Hartford Institute for Religion Research and as the site notes,"several of the organizations and religious groups listed on this page either do not envision themselves as denominations or are loose associations of congregations; therefore, the web site listed might not be an official denominational site nor represent an "official" perspective of a national religious entity."
Founded in 2008, Patheos.com is the premier online destination to engage in the global dialogue about religion and spirituality and to explore and experience the world's beliefs. Patheos is the website of choice for the millions of people looking for credible and balanced information about religion. Patheos brings together faith communities, academics, and the broader public into a single environment, and is the place where many people turn on a regular basis for insight, inspiration, and stimulating discussion. (From the website)
The Pew Research Center’s Forum on Religion & Public Life, launched in 2001, seeks to promote a deeper understanding of issues at the intersection of religion and public affairs. The Pew Forum conducts surveys, demographic analyses and other social science research on important aspects of religion and public life in the U.S. and around the world. It also provides a neutral venue for discussions of timely issues through roundtables and briefings. (From the Website)
The Pluralism Project: World Religions in America is a two decade-long research project with current funding from the Lilly Endowment and the E. Rhodes and Leona B. Carpenter Foundation to engage students in studying the new religious diversity in the United States. We will explore particularly the communities and religious traditions of Asia and the Middle East that have become woven into the religious fabric of the United States in the past twenty-five years. (From Website)
The goal of Religion Facts is to provide free, reliable information — "just the facts" — on the various answers that have been given to these questions, as well as the rituals and customs that go along with them. This very broad definition means that we have articles on a wide variety of world religions and belief systems, both ancient and modern.
Streaming videos on various religious studies topics. To view Library of Congress Webcasts you need the RealPlayer, a free application for playing video and audio files. You can download the RealPlayer from the RealNetworks site.